raw_ip.c revision 1.97.6.1
1 /* $NetBSD: raw_ip.c,v 1.97.6.1 2007/09/03 16:49:06 jmcneill Exp $ */ 2 3 /* 4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the project nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 /* 33 * Copyright (c) 1982, 1986, 1988, 1993 34 * The Regents of the University of California. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 3. Neither the name of the University nor the names of its contributors 45 * may be used to endorse or promote products derived from this software 46 * without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 58 * SUCH DAMAGE. 59 * 60 * @(#)raw_ip.c 8.7 (Berkeley) 5/15/95 61 */ 62 63 #include <sys/cdefs.h> 64 __KERNEL_RCSID(0, "$NetBSD: raw_ip.c,v 1.97.6.1 2007/09/03 16:49:06 jmcneill Exp $"); 65 66 #include "opt_inet.h" 67 #include "opt_ipsec.h" 68 #include "opt_mrouting.h" 69 70 #include <sys/param.h> 71 #include <sys/sysctl.h> 72 #include <sys/malloc.h> 73 #include <sys/mbuf.h> 74 #include <sys/socket.h> 75 #include <sys/protosw.h> 76 #include <sys/socketvar.h> 77 #include <sys/errno.h> 78 #include <sys/systm.h> 79 #include <sys/proc.h> 80 #include <sys/kauth.h> 81 82 #include <net/if.h> 83 #include <net/route.h> 84 85 #include <netinet/in.h> 86 #include <netinet/in_systm.h> 87 #include <netinet/ip.h> 88 #include <netinet/ip_var.h> 89 #include <netinet/ip_mroute.h> 90 #include <netinet/ip_icmp.h> 91 #include <netinet/in_pcb.h> 92 #include <netinet/in_proto.h> 93 #include <netinet/in_var.h> 94 95 #include <machine/stdarg.h> 96 97 #ifdef IPSEC 98 #include <netinet6/ipsec.h> 99 #endif /*IPSEC*/ 100 101 #ifdef FAST_IPSEC 102 #include <netipsec/ipsec.h> 103 #include <netipsec/ipsec_var.h> /* XXX ipsecstat namespace */ 104 #endif /* FAST_IPSEC*/ 105 106 struct inpcbtable rawcbtable; 107 108 int rip_pcbnotify(struct inpcbtable *, struct in_addr, 109 struct in_addr, int, int, void (*)(struct inpcb *, int)); 110 int rip_bind(struct inpcb *, struct mbuf *); 111 int rip_connect(struct inpcb *, struct mbuf *); 112 void rip_disconnect(struct inpcb *); 113 114 /* 115 * Nominal space allocated to a raw ip socket. 116 */ 117 #define RIPSNDQ 8192 118 #define RIPRCVQ 8192 119 120 /* 121 * Raw interface to IP protocol. 122 */ 123 124 /* 125 * Initialize raw connection block q. 126 */ 127 void 128 rip_init(void) 129 { 130 131 in_pcbinit(&rawcbtable, 1, 1); 132 } 133 134 /* 135 * Setup generic address and protocol structures 136 * for raw_input routine, then pass them along with 137 * mbuf chain. 138 */ 139 void 140 rip_input(struct mbuf *m, ...) 141 { 142 int proto; 143 struct ip *ip = mtod(m, struct ip *); 144 struct inpcb_hdr *inph; 145 struct inpcb *inp; 146 struct inpcb *last = NULL; 147 struct mbuf *n, *opts = NULL; 148 struct sockaddr_in ripsrc; 149 va_list ap; 150 151 va_start(ap, m); 152 (void)va_arg(ap, int); /* ignore value, advance ap */ 153 proto = va_arg(ap, int); 154 va_end(ap); 155 156 sockaddr_in_init(&ripsrc, &ip->ip_src, 0); 157 158 /* 159 * XXX Compatibility: programs using raw IP expect ip_len 160 * XXX to have the header length subtracted, and in host order. 161 * XXX ip_off is also expected to be host order. 162 */ 163 ip->ip_len = ntohs(ip->ip_len) - (ip->ip_hl << 2); 164 NTOHS(ip->ip_off); 165 166 CIRCLEQ_FOREACH(inph, &rawcbtable.inpt_queue, inph_queue) { 167 inp = (struct inpcb *)inph; 168 if (inp->inp_af != AF_INET) 169 continue; 170 if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != proto) 171 continue; 172 if (!in_nullhost(inp->inp_laddr) && 173 !in_hosteq(inp->inp_laddr, ip->ip_dst)) 174 continue; 175 if (!in_nullhost(inp->inp_faddr) && 176 !in_hosteq(inp->inp_faddr, ip->ip_src)) 177 continue; 178 if (last == NULL) 179 ; 180 #if defined(IPSEC) || defined(FAST_IPSEC) 181 /* check AH/ESP integrity. */ 182 else if (ipsec4_in_reject_so(m, last->inp_socket)) { 183 ipsecstat.in_polvio++; 184 /* do not inject data to pcb */ 185 } 186 #endif /*IPSEC*/ 187 else if ((n = m_copypacket(m, M_DONTWAIT)) != NULL) { 188 if (last->inp_flags & INP_CONTROLOPTS || 189 last->inp_socket->so_options & SO_TIMESTAMP) 190 ip_savecontrol(last, &opts, ip, n); 191 if (sbappendaddr(&last->inp_socket->so_rcv, 192 sintosa(&ripsrc), n, opts) == 0) { 193 /* should notify about lost packet */ 194 m_freem(n); 195 if (opts) 196 m_freem(opts); 197 } else 198 sorwakeup(last->inp_socket); 199 opts = NULL; 200 } 201 last = inp; 202 } 203 #if defined(IPSEC) || defined(FAST_IPSEC) 204 /* check AH/ESP integrity. */ 205 if (last != NULL && ipsec4_in_reject_so(m, last->inp_socket)) { 206 m_freem(m); 207 ipsecstat.in_polvio++; 208 ipstat.ips_delivered--; 209 /* do not inject data to pcb */ 210 } else 211 #endif /*IPSEC*/ 212 if (last != NULL) { 213 if (last->inp_flags & INP_CONTROLOPTS || 214 last->inp_socket->so_options & SO_TIMESTAMP) 215 ip_savecontrol(last, &opts, ip, m); 216 if (sbappendaddr(&last->inp_socket->so_rcv, 217 sintosa(&ripsrc), m, opts) == 0) { 218 m_freem(m); 219 if (opts) 220 m_freem(opts); 221 } else 222 sorwakeup(last->inp_socket); 223 } else if (inetsw[ip_protox[ip->ip_p]].pr_input == rip_input) { 224 icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_PROTOCOL, 225 0, 0); 226 ipstat.ips_noproto++; 227 ipstat.ips_delivered--; 228 } else 229 m_freem(m); 230 return; 231 } 232 233 int 234 rip_pcbnotify(struct inpcbtable *table, 235 struct in_addr faddr, struct in_addr laddr, int proto, int errno, 236 void (*notify)(struct inpcb *, int)) 237 { 238 struct inpcb *inp, *ninp; 239 int nmatch; 240 241 nmatch = 0; 242 for (inp = (struct inpcb *)CIRCLEQ_FIRST(&table->inpt_queue); 243 inp != (struct inpcb *)&table->inpt_queue; 244 inp = ninp) { 245 ninp = (struct inpcb *)inp->inp_queue.cqe_next; 246 if (inp->inp_af != AF_INET) 247 continue; 248 if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != proto) 249 continue; 250 if (in_hosteq(inp->inp_faddr, faddr) && 251 in_hosteq(inp->inp_laddr, laddr)) { 252 (*notify)(inp, errno); 253 nmatch++; 254 } 255 } 256 257 return nmatch; 258 } 259 260 void * 261 rip_ctlinput(int cmd, const struct sockaddr *sa, void *v) 262 { 263 struct ip *ip = v; 264 void (*notify)(struct inpcb *, int) = in_rtchange; 265 int errno; 266 267 if (sa->sa_family != AF_INET || 268 sa->sa_len != sizeof(struct sockaddr_in)) 269 return NULL; 270 if ((unsigned)cmd >= PRC_NCMDS) 271 return NULL; 272 errno = inetctlerrmap[cmd]; 273 if (PRC_IS_REDIRECT(cmd)) 274 notify = in_rtchange, ip = 0; 275 else if (cmd == PRC_HOSTDEAD) 276 ip = 0; 277 else if (errno == 0) 278 return NULL; 279 if (ip) { 280 rip_pcbnotify(&rawcbtable, satocsin(sa)->sin_addr, 281 ip->ip_src, ip->ip_p, errno, notify); 282 283 /* XXX mapped address case */ 284 } else 285 in_pcbnotifyall(&rawcbtable, satocsin(sa)->sin_addr, errno, 286 notify); 287 return NULL; 288 } 289 290 /* 291 * Generate IP header and pass packet to ip_output. 292 * Tack on options user may have setup with control call. 293 */ 294 int 295 rip_output(struct mbuf *m, ...) 296 { 297 struct inpcb *inp; 298 struct ip *ip; 299 struct mbuf *opts; 300 int flags; 301 va_list ap; 302 303 va_start(ap, m); 304 inp = va_arg(ap, struct inpcb *); 305 va_end(ap); 306 307 flags = 308 (inp->inp_socket->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST 309 | IP_RETURNMTU; 310 311 /* 312 * If the user handed us a complete IP packet, use it. 313 * Otherwise, allocate an mbuf for a header and fill it in. 314 */ 315 if ((inp->inp_flags & INP_HDRINCL) == 0) { 316 if ((m->m_pkthdr.len + sizeof(struct ip)) > IP_MAXPACKET) { 317 m_freem(m); 318 return (EMSGSIZE); 319 } 320 M_PREPEND(m, sizeof(struct ip), M_DONTWAIT); 321 if (!m) 322 return (ENOBUFS); 323 ip = mtod(m, struct ip *); 324 ip->ip_tos = 0; 325 ip->ip_off = htons(0); 326 ip->ip_p = inp->inp_ip.ip_p; 327 ip->ip_len = htons(m->m_pkthdr.len); 328 ip->ip_src = inp->inp_laddr; 329 ip->ip_dst = inp->inp_faddr; 330 ip->ip_ttl = MAXTTL; 331 opts = inp->inp_options; 332 } else { 333 if (m->m_pkthdr.len > IP_MAXPACKET) { 334 m_freem(m); 335 return (EMSGSIZE); 336 } 337 ip = mtod(m, struct ip *); 338 339 /* 340 * If the mbuf is read-only, we need to allocate 341 * a new mbuf for the header, since we need to 342 * modify the header. 343 */ 344 if (M_READONLY(m)) { 345 int hlen = ip->ip_hl << 2; 346 347 m = m_copyup(m, hlen, (max_linkhdr + 3) & ~3); 348 if (m == NULL) 349 return (ENOMEM); /* XXX */ 350 ip = mtod(m, struct ip *); 351 } 352 353 /* XXX userland passes ip_len and ip_off in host order */ 354 if (m->m_pkthdr.len != ip->ip_len) { 355 m_freem(m); 356 return (EINVAL); 357 } 358 HTONS(ip->ip_len); 359 HTONS(ip->ip_off); 360 if (ip->ip_id == 0) 361 ip->ip_id = ip_newid(); 362 opts = NULL; 363 /* XXX prevent ip_output from overwriting header fields */ 364 flags |= IP_RAWOUTPUT; 365 ipstat.ips_rawout++; 366 } 367 return (ip_output(m, opts, &inp->inp_route, flags, inp->inp_moptions, 368 inp->inp_socket, &inp->inp_errormtu)); 369 } 370 371 /* 372 * Raw IP socket option processing. 373 */ 374 int 375 rip_ctloutput(int op, struct socket *so, int level, int optname, 376 struct mbuf **m) 377 { 378 struct inpcb *inp = sotoinpcb(so); 379 int error = 0; 380 381 if (level != IPPROTO_IP) { 382 error = ENOPROTOOPT; 383 if (op == PRCO_SETOPT && *m != 0) 384 (void) m_free(*m); 385 } else switch (op) { 386 387 case PRCO_SETOPT: 388 switch (optname) { 389 case IP_HDRINCL: 390 if (*m == 0 || (*m)->m_len < sizeof (int)) 391 error = EINVAL; 392 else { 393 if (*mtod(*m, int *)) 394 inp->inp_flags |= INP_HDRINCL; 395 else 396 inp->inp_flags &= ~INP_HDRINCL; 397 } 398 if (*m != 0) 399 (void) m_free(*m); 400 break; 401 402 #ifdef MROUTING 403 case MRT_INIT: 404 case MRT_DONE: 405 case MRT_ADD_VIF: 406 case MRT_DEL_VIF: 407 case MRT_ADD_MFC: 408 case MRT_DEL_MFC: 409 case MRT_ASSERT: 410 case MRT_API_CONFIG: 411 case MRT_ADD_BW_UPCALL: 412 case MRT_DEL_BW_UPCALL: 413 error = ip_mrouter_set(so, optname, m); 414 break; 415 #endif 416 417 default: 418 error = ip_ctloutput(op, so, level, optname, m); 419 break; 420 } 421 break; 422 423 case PRCO_GETOPT: 424 switch (optname) { 425 case IP_HDRINCL: 426 *m = m_get(M_WAIT, MT_SOOPTS); 427 MCLAIM((*m), so->so_mowner); 428 (*m)->m_len = sizeof (int); 429 *mtod(*m, int *) = inp->inp_flags & INP_HDRINCL ? 1 : 0; 430 break; 431 432 #ifdef MROUTING 433 case MRT_VERSION: 434 case MRT_ASSERT: 435 case MRT_API_SUPPORT: 436 case MRT_API_CONFIG: 437 error = ip_mrouter_get(so, optname, m); 438 break; 439 #endif 440 441 default: 442 error = ip_ctloutput(op, so, level, optname, m); 443 break; 444 } 445 break; 446 } 447 return (error); 448 } 449 450 int 451 rip_bind(struct inpcb *inp, struct mbuf *nam) 452 { 453 struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); 454 455 if (nam->m_len != sizeof(*addr)) 456 return (EINVAL); 457 if (TAILQ_FIRST(&ifnet) == 0) 458 return (EADDRNOTAVAIL); 459 if (addr->sin_family != AF_INET && 460 addr->sin_family != AF_IMPLINK) 461 return (EAFNOSUPPORT); 462 if (!in_nullhost(addr->sin_addr) && 463 ifa_ifwithaddr(sintosa(addr)) == 0) 464 return (EADDRNOTAVAIL); 465 inp->inp_laddr = addr->sin_addr; 466 return (0); 467 } 468 469 int 470 rip_connect(struct inpcb *inp, struct mbuf *nam) 471 { 472 struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); 473 474 if (nam->m_len != sizeof(*addr)) 475 return (EINVAL); 476 if (TAILQ_FIRST(&ifnet) == 0) 477 return (EADDRNOTAVAIL); 478 if (addr->sin_family != AF_INET && 479 addr->sin_family != AF_IMPLINK) 480 return (EAFNOSUPPORT); 481 inp->inp_faddr = addr->sin_addr; 482 return (0); 483 } 484 485 void 486 rip_disconnect(struct inpcb *inp) 487 { 488 489 inp->inp_faddr = zeroin_addr; 490 } 491 492 u_long rip_sendspace = RIPSNDQ; 493 u_long rip_recvspace = RIPRCVQ; 494 495 /*ARGSUSED*/ 496 int 497 rip_usrreq(struct socket *so, int req, 498 struct mbuf *m, struct mbuf *nam, struct mbuf *control, struct lwp *l) 499 { 500 struct inpcb *inp; 501 int s; 502 int error = 0; 503 #ifdef MROUTING 504 extern struct socket *ip_mrouter; 505 #endif 506 507 if (req == PRU_CONTROL) 508 return (in_control(so, (long)m, (void *)nam, 509 (struct ifnet *)control, l)); 510 511 s = splsoftnet(); 512 513 if (req == PRU_PURGEIF) { 514 in_pcbpurgeif0(&rawcbtable, (struct ifnet *)control); 515 in_purgeif((struct ifnet *)control); 516 in_pcbpurgeif(&rawcbtable, (struct ifnet *)control); 517 splx(s); 518 return (0); 519 } 520 521 inp = sotoinpcb(so); 522 #ifdef DIAGNOSTIC 523 if (req != PRU_SEND && req != PRU_SENDOOB && control) 524 panic("rip_usrreq: unexpected control mbuf"); 525 #endif 526 if (inp == 0 && req != PRU_ATTACH) { 527 error = EINVAL; 528 goto release; 529 } 530 531 switch (req) { 532 533 case PRU_ATTACH: 534 if (inp != 0) { 535 error = EISCONN; 536 break; 537 } 538 539 if (l == NULL) { 540 error = EACCES; 541 break; 542 } 543 544 /* XXX: raw socket permissions are checked in socreate() */ 545 546 if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) { 547 error = soreserve(so, rip_sendspace, rip_recvspace); 548 if (error) 549 break; 550 } 551 error = in_pcballoc(so, &rawcbtable); 552 if (error) 553 break; 554 inp = sotoinpcb(so); 555 inp->inp_ip.ip_p = (long)nam; 556 break; 557 558 case PRU_DETACH: 559 #ifdef MROUTING 560 if (so == ip_mrouter) 561 ip_mrouter_done(); 562 #endif 563 in_pcbdetach(inp); 564 break; 565 566 case PRU_BIND: 567 error = rip_bind(inp, nam); 568 break; 569 570 case PRU_LISTEN: 571 error = EOPNOTSUPP; 572 break; 573 574 case PRU_CONNECT: 575 error = rip_connect(inp, nam); 576 if (error) 577 break; 578 soisconnected(so); 579 break; 580 581 case PRU_CONNECT2: 582 error = EOPNOTSUPP; 583 break; 584 585 case PRU_DISCONNECT: 586 soisdisconnected(so); 587 rip_disconnect(inp); 588 break; 589 590 /* 591 * Mark the connection as being incapable of further input. 592 */ 593 case PRU_SHUTDOWN: 594 socantsendmore(so); 595 break; 596 597 case PRU_RCVD: 598 error = EOPNOTSUPP; 599 break; 600 601 /* 602 * Ship a packet out. The appropriate raw output 603 * routine handles any massaging necessary. 604 */ 605 case PRU_SEND: 606 if (control && control->m_len) { 607 m_freem(control); 608 m_freem(m); 609 error = EINVAL; 610 break; 611 } 612 { 613 if (nam) { 614 if ((so->so_state & SS_ISCONNECTED) != 0) { 615 error = EISCONN; 616 goto die; 617 } 618 error = rip_connect(inp, nam); 619 if (error) { 620 die: 621 m_freem(m); 622 break; 623 } 624 } else { 625 if ((so->so_state & SS_ISCONNECTED) == 0) { 626 error = ENOTCONN; 627 goto die; 628 } 629 } 630 error = rip_output(m, inp); 631 if (nam) 632 rip_disconnect(inp); 633 } 634 break; 635 636 case PRU_SENSE: 637 /* 638 * stat: don't bother with a blocksize. 639 */ 640 splx(s); 641 return (0); 642 643 case PRU_RCVOOB: 644 error = EOPNOTSUPP; 645 break; 646 647 case PRU_SENDOOB: 648 m_freem(control); 649 m_freem(m); 650 error = EOPNOTSUPP; 651 break; 652 653 case PRU_SOCKADDR: 654 in_setsockaddr(inp, nam); 655 break; 656 657 case PRU_PEERADDR: 658 in_setpeeraddr(inp, nam); 659 break; 660 661 default: 662 panic("rip_usrreq"); 663 } 664 665 release: 666 splx(s); 667 return (error); 668 } 669 670 SYSCTL_SETUP(sysctl_net_inet_raw_setup, "sysctl net.inet.raw subtree setup") 671 { 672 673 sysctl_createv(clog, 0, NULL, NULL, 674 CTLFLAG_PERMANENT, 675 CTLTYPE_NODE, "net", NULL, 676 NULL, 0, NULL, 0, 677 CTL_NET, CTL_EOL); 678 sysctl_createv(clog, 0, NULL, NULL, 679 CTLFLAG_PERMANENT, 680 CTLTYPE_NODE, "inet", NULL, 681 NULL, 0, NULL, 0, 682 CTL_NET, PF_INET, CTL_EOL); 683 sysctl_createv(clog, 0, NULL, NULL, 684 CTLFLAG_PERMANENT, 685 CTLTYPE_NODE, "raw", 686 SYSCTL_DESCR("Raw IPv4 settings"), 687 NULL, 0, NULL, 0, 688 CTL_NET, PF_INET, IPPROTO_RAW, CTL_EOL); 689 690 sysctl_createv(clog, 0, NULL, NULL, 691 CTLFLAG_PERMANENT, 692 CTLTYPE_STRUCT, "pcblist", 693 SYSCTL_DESCR("Raw IPv4 control block list"), 694 sysctl_inpcblist, 0, &rawcbtable, 0, 695 CTL_NET, PF_INET, IPPROTO_RAW, 696 CTL_CREATE, CTL_EOL); 697 } 698
Indexes created Mon Sep 29 21:09:56 GMT 2025